Js解析json

var sysModule=[];        
   var treeJson = <%=(sysModule) %>;
            if (treeJson.length == 0) $("#content").html("");
            $(treeJson).each(function (i, menu) {
                console.log(i);
                console.log(menu);
                var item ="";
                $(menu.children).each(function (j, submenu) {
                    item += "<li><a href=""+submenu.Url+""><i class=""+submenu.icon+""></i><span class="hidden-tablet">"+submenu.Name+"</span></a></li>";
                });
                $("#nav_menu").html(item);
            });